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Weather & Climate in Mường Xén, Vietnam
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mường Xén enjoys a temperate climate with an average annual temperature of 70°F (21°C). Winters average 57°F in January while summers reach 77°F in July. The area gets 281 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 59.7 inches (wetter than the 38-inch national average). The city sits at an elevation of 482 feet.
Temperature
57°F Jan (14°C)
77°F Jul (25°C)
| Annual Average | 69.8°F |
| 29% above US avg | |
| January Average | 57°F (14°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 281 days/yr |
Geography
| Elevation | 482 ft (147 m) |
| Area | 231.1 sq mi (598.6 km²) |
| Population Density | 0/sq mi |
| Coordinates | 19.3980°N, 104.1524°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
4 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.5.
| May 26, 2015 | 73 km ESE of Muang Phônsavan, Laos | M4.5 | 42 km | 13 km |
| Jun 21, 1995 | 83 km W of Xam Nua, Laos | M4.4 | 142 km | 33 km |
| Jun 21, 1995 | 72 km N of Muang Phônsavan, Laos | M4.2 | 124 km | 10 km |
| Sep 19, 2010 | 71 km SSW of Hòa Bình, Vietnam | M4.0 | 131 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
19 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Kajiki | Category 2 | — | 185 km |
| 2025 | Bualoi | Category 1 | — | 253 km |
| 2024 | Yagi | Category 2 | 63 mph | 240 km |
| 2017 | Doksuri | Category 2 | 92 mph | 206 km |
| 2016 | Mirinae | Category 1 | 52 mph | 232 km |
| 2013 | Wutip | Category 2 | 69 mph | 184 km |
| 2012 | Son-tinh | Category 2 | 69 mph | 275 km |
| 2007 | Lekima | Category 1 | 63 mph | 298 km |
| 1997 | Zita | Category 1 | 46 mph | 285 km |
| 1996 | Frankie | Category 2 | 52 mph | 209 km |
| 1996 | Niki | Category 1 | 69 mph | 166 km |
| 1995 | Lois | Category 1 | 58 mph | 143 km |
| 1993 | Lewis | Category 1 | 58 mph | 282 km |
| 1991 | Fred | Category 1 | 69 mph | 275 km |
| 1989 | Brian | Category 1 | 58 mph | 245 km |
| 1987 | Cary | Category 1 | 63 mph | 286 km |
| 1985 | Dot | Category 1 | — | 292 km |
| 1982 | Nancy | Category 1 | 81 mph | 158 km |
| 1980 | Ruth | Category 1 | 63 mph | 273 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 57°F (14°C) | 0.5 in | Coldest, Driest |
| February | 65°F (18°C) | 1.5 in | |
| March | 70°F (21°C) | 1.5 in | |
| April | 76°F (24°C) | 2.6 in | |
| May | 81°F (27°C) | 7.2 in | |
| June | 83°F (28°C) | 6.7 in | Warmest |
| July | 77°F (25°C) | 9.9 in | |
| August | 82°F (28°C) | 9.9 in | |
| September | 79°F (26°C) | 13.6 in | Wettest |
| October | 76°F (24°C) | 5.3 in | |
| November | 70°F (21°C) | 2.1 in | |
| December | 65°F (18°C) | 1.0 in |
Mường Xén has a seasonal temperature swing of 26°F / from 57°F in January to 83°F in June. Total annual precipitation is 61.8 inches, with September being the wettest month (13.6") and January the driest (0.5").